thoracic ganglion

Any of 11 or 12 pairs of paravertebral ganglia in the thoracic section the sympathetic trunk. The first four or five thoracic ganglia send postganglionic sympathetic axons to the cardiac nerves. Three major splanchnic nerves (the greater, lesser, and least splanchnic nerves) appear to emerge from the thoracic ganglia. They then run through the diaphragm and end in the celiac, mesenteric, and aorticorenal prevertebral ganglia. These nerves are actually bundles of preganglionic sympathetic axons that originate in the spinal cord and pass through the thoracic paravertebral ganglia without synapsing on their way to synapse in the abdominal prevertebral ganglia. See also: ganglion

单词	thoracic ganglion
释义	DictionarySeeganglion thoracic ganglion thoracic ganglion Any of 11 or 12 pairs of paravertebral ganglia in the thoracic section the sympathetic trunk. The first four or five thoracic ganglia send postganglionic sympathetic axons to the cardiac nerves. Three major splanchnic nerves (the greater, lesser, and least splanchnic nerves) appear to emerge from the thoracic ganglia. They then run through the diaphragm and end in the celiac, mesenteric, and aorticorenal prevertebral ganglia. These nerves are actually bundles of preganglionic sympathetic axons that originate in the spinal cord and pass through the thoracic paravertebral ganglia without synapsing on their way to synapse in the abdominal prevertebral ganglia. See also: ganglion
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